This is where OP_Taunt would be initially handled:
https://github.com/EQEmu/Server/blob...ket.cpp#L13096
Which, then, would call this:
https://github.com/EQEmu/Server/blob...acks.cpp#L2100
There doesn't appear to be any client version-specific code in these functions..so, the actual behavior 'should' be the same between the two clients - unless, one of
them has built-in checks to prevent the taunt packet from being sent.
So, you can see from the function in the second link that there are a lot of conditions that determine a successful taunt.
I would make sure that your actual skill is high enough to be an effective taunt attempt - like AdrianD mentioned.